If you’d like to make this grain-free, here is the adaptation: Reduce the milk and cream to 1/2 cup each and omit the water. When you add the arrowroot, just sprinkle it over the mixture in the pot and then pour in the cream and milk. Simmer until thick, about 2-3 minutes. Stir in cheese and sour cream. Serve over grain-free pasta (such as Capellos) or serve over a baked potato.